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Convert a vb function to javascript function... 1

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petersmith

petersmith

Technical User
Sep 16, 2001
5
GB
Hi i have this working vb function which i need to call on an onclick event in javascript...


function ValKey(Vin)
dim k, i, s, b
k= ""

if len(Vin) = 7 then
s = UCase(mid(Vin,1,1))
if s = "A" or s = "S" or s = "M" then
b = true
for i = 2 to 7
if not IsNumeric(mid(Vin,i,1)) then b = false
next
if b then k = ucase(Vin)
end if
end if
Valkey = k
end function

can anyone show me how to convert it or get it to work on an onclick event?

kindest thanks.
 
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Thanks for replying, just need it to work on an onclick event. How to i embed it in javascript?

regards,

Pete
 
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How about this (using regular expressions):
Code: 
<html><head><title></title>
<script type="text/javascript">
function valKey(_myKey){
  return (/[AaMmSs]{1}[0123456789]{7}/g.test(_myKey));
}
</script>
</head>
<body>
<form name="myTestForm" action="">
<input type="text" name="keyField" value="A1234567" onchange="alert(valKey(this.value))">
<input type="button" value="Test" onclick="alert(valKey(forms[0].elements['keyField'].value));">
</form>
</body>
</html>
I have added an onclick for a button and an onchange to the input element to allow you to test it.

Hope this does all you want [smile]
Jeff
 
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Ah... looking at your code you wanted 6 digits... my code requires 7 digits. Make this change:
Code: 
return (/[AaMmSs]{1}[0123456789]{[COLOR=red]6[/color]}/g.test(_myKey));
Cheers,
Jeff
 
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Thanks, this works. How would you get it to display false if there are more than 6 digits and display an alert saying "incorect format" or somthing?

kindest thanks.
 
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Hi i have tried to call this function on an onclick event but it doesn't work..


<script type="text/javascript">
function valKey(){
var Key

Key = document.form1.minvin.value;


if (/[AaMmSs]{1}[0123456789]{6}/g.test(Key)) == true {
document.form1.form.submit ;
else
alert("Vin format is incorrect (e.g. A123456)\nPlease try again.")
}
}
</script>

Any ideas where i have gone wrong?

kindest thanks.
 
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Something like this will kind of do it:
Code: 
<script type="text/javascript">
function valKey(_myKey){
  var bValid = /[AaMmSs]{1}[0123456789]{7}/g.test(_myKey);
  if (!bValid) errMsg += '\nIncorrect format. Use A, M, S followed by exactly 6 digits. Example: A123456';
  return bValid;
}
</script>

Cheers,
Jeff

 
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